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Kinetics and mechanism of chloramine-T oxidation of cinnamaldehyde in two acid media

โœ Scribed by C. K. Mythily; K. S. Rangappa; N. M. Made Gowda

Publisher
John Wiley and Sons
Year
1991
Tongue
English
Weight
462 KB
Volume
23
Category
Article
ISSN
0538-8066

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โœฆ Synopsis

Kinetics of oxidation of cinnamaldehyde (Cinn) by chloramine-T (CAT) has been studied in solutions containing HCl and H2S04 at 313 K. The respective experimental rate laws obtained in HCl and HZS04 media are as follows:

(1)

and

Here the value of x varies from 0.9 to zero while the values of y and z are 0.83 and 0.72, respectively. Effects, on the reaction rate, of ionic strength, reaction product (p-toluenesulfonamide), dielectric constant of the solvent medium, and the anions, C1-and SO: -, have been investigated. Activation parameters have been computed, based on the rate constants determined at different temperatures. Mechanisms proposed and the rate laws derived are consistent with the observed kinetic data represented by the experimental rate laws.

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